Ventilator



Oct. 6, 1931. AB, KAVANAGH 1,826,353

VENTILATOH Filed Marh 5. 1950 jgi v IN V EN TOR.

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'ATTORNE Patented ct. 6, 1931 UNTED STATES BURNETT K AVANAGH, F YORK, N. Y.

VENTILATOB.

Application led March 5,

My invention relates to ventilators used in window casings.

The object of my invention is to provide a ventilator which may be made as an independent article of manufacture and may be readily secured in position in the window casing, and which comprises means for holding a Window shade, and which may also serve to hold curtains, and prevent them and the shade from being moved by the iow of air into the room. A further object of my invention is to provide a ventilator so formed as to protect the shade and curtains from becoming soiled by dust carried by the iniowing air currents.

A further object is to make the ventilator in two or more sections which are relatively adjustable so that they may be made to fitin window casings of various widths.

Referring to the drawings which form a part of this specification:

Fig. 1 is a cross-sectional view thru the upper part of a window casing, showing my improved ventilator in position, with a shade held therein, and shown in cross-section.

Fig. 2 is an elevational longitudinal view of the ventilator.

Figs. 3 and 4 are oppositely disposed end views thereof.

Fig. 5 is a perspective view oa ventilator in which the end plates do not extend entirely across the width of the ventilator, the shade brackets being formed as illustrated.

10 indicates the outer window casing and 11- the inner casing. 12- indicates the outer window which is lowered to permit air to flow above same and over the top of the ventilator 13- which extends entirely across the window casing and may be held at' each 49 end by one or more screws which extend thru holes 1liformed in the end plates 15- or the holes 16- formed in the tabs 17 of the ventilator casing 13- when made in a single piece or 13 and 13'- when made in two i5 parts.

I prefer to make the ventilator of sheet metal, such as iron, which may be enamelled in any desired color, or brass which may be polished and lacquered.

50 The ventilator, together with the shade yby the shade roller, lair currents owing above the window sash 1930. Seral'No. 433,231.

brackets may be formed in one piece of sheet metal which is made long enoughto extend entirely across the window casing with its ends abutting the same, and this is prefer- .able when a complete building is to be equipped with the ventilators, but when providing same Jfor sale to the general trade I prefer to make them in two parts, as illustrated in Figure 2, one section being formed with overturned edges y18- and I9- to provide longitudinally kextending grooves 20- and 21- respectively, to receive the edge portions 22-n and 23- oi the opposite section and arranged to telescope as illustrated in Figure 2, to permit adjustment for the purpose stated.

In Figures 1, 2, 3 and 4c I have shown the ventilator constructed with end plates or wallsv 24- and 25- respectively, one plate having'a hole 26- to hold one end of the shade-roller and the other plate having a slot 21T-to hold the other end.

In Figure 5 the shade brackets are provided by forming a tab 28- on each end of the ventilator to hold the shade in position therein. The tabs 17 may be bent to rest in alignment with therback sheet of the casing to permit the tabs to overlie the front panel of the window casing and be attached thereto by screws, or may extend parallel with the wall of the end plates 2P and 25- as shown, to hold the ventilator in the win- Ydow casing as shown in Figure l.

The back wall Q9- of the ventilator extends well below the position of the shade roller 80- and provides a shield for thecurtains 31-. $2- indicates the shade carried and protected from the 33- into the room in which the ventilator is located.

The inner edge of the hood 3&1- ot the ventilator is provided with holes 35- to receive wire hooks 36- whioh support the curtain 31.

The end plates 24- and 25- are formed with inwardly extending offset portions 26- and 27- with the hole 26- and slot 27 formed therein, as illustrated, to support the ends of the shade roller in the usual manner.;

As illustrated, the hood portion of the ventilator is preferably formed with a curved surface, which prevents dust from collecting thereon better than when formed with a flat 5 top, but it may be of any form desired which will serve the purpose above set forth.

The methods of making articles of lsheet metal are so well known that further detailed description is unnecessary, further than to l0 state that the ventilator should be made of thin still metal to reduce the weight, and by the use of the end plates M and 25.- the hood is stiifened and strengthened as a whole. Having thus described my invention, I claim as new:

'1. A ventilator of the character described comprising a sheet of suitable material formed to provide an upwardly extend-ing 'back wall and a hood portion adapted to ycover and partially inclose a shade with the forward edge of the hood terminating forwardly of the shade and extending beyond the length thereof whereby the shade may be removed from the ventilator when the latter is in mounted position and adapted to be held at eaoh end to the sides of a window casing.

2. A ventilator of the character described comprising a sheet of suitable material 30 formed to provide an upwardly extending back wall and a hood portion adapted to oover and partially inclose a shade with the forward edge of the hood terminating forwardly of the shade and extendingbeyond the V3.5 length thereof, and adapted to be he'ldat each end to the sides of a window casing, and having a shade-bracket .carried at each end thereof to support a shade under said hood with the shade removable while 'the ventila- 440 tor 'is in mounted position.

3. A ventilator of the Character described comprising a plurality of sheets of suitable material each having an upwardly extending bach wall portion and a hood portion adapted to cover a vshade with the forward edge of the hood terminating forwardly and upwardly of the longitudinal axis of the shade, and means for connecting said portions in overlapping ladjustable relation.

.50 4L, A ventilator of the character described comprising a plurality of sheets of suitable material each having an upwardly extending back wall portion and a forwardly curved hood portion adapted to cover a shade with the forward edge of the hood terminating to provide a hood of substantially semicircular formation and means for connecting said portions in overlapping adjustable relation, and having end portions each of which has means to support one end of a shade roller, with the shade roller removable while the hood is in mounted position.

In testimony whereof I have afixed my signature.

BURNETT KA'VANAGH. 

